查询词典 roach back

back pressure return：余压回水

back pressure of steam trap凝结水背压力 | back pressure return余压回水 | background noise背景噪声

Back pressure valve：止回阀

backlash valve 无游隙阀门 | back-pressure valve 止回阀 | back-up valve 列车后端制动阀

back projection：背面放映合成

back lot 露天片厂 | back projection 背面放映合成 | background music 背景音乐

BP Back Projection：反投影

Boeing 波音公司(美国) | BP Back Projection 反投影 | BP Back Propagation 反向传播

back room：端线外空地

back boundary line 端线(单打后发球线) | back room 端线外空地 | backhand smash 反拍扣球

back room;runback：端线外的空地

151.端线:base line; back boundary line | 152.端线外的空地:back room;runback | 153.发球区:service court

back sb up：支持某人

bachelorn.单身汉;学士 | back sb up 支持某人 | back down 放弃要求

back seat：上密封

三通式 Three way type | 上密封 Back seat | 上密封试验 Back seal test

l went back to his pawn shop that night：那天晚上我返回他的小商店

came in and tried to punk me in front of my people.|进来并想在我的人面前带... | l went back to his pawn shop that night.|那天晚上我返回他的小商店 | Yeah, l went back, and l firebombed it.|额,我回去了并烧...

back street：后街(芳华虚度)

Baby the Rain Must Fall 蓬门碧玉泪 | Back Street 后街(芳华虚度) | Back to Bataan 菲律宾浴血战

phenol red：酚红,苯酚磺酞

phenol reagent 酚试剂 | phenol red 酚红,苯酚磺酞 | phenol red test 酚红排泌试验

accessory equipment：附件

accessory equipment 辅助设备 | accessory equipment 附件 | accessory part 附件